Understanding Construction Site Safety Signs

It is important to understand the messages given to you by construction site safety signs, they are displayed to deliver a clear health and safety message. Failing to abide by a sign might mean you lose your job, or your life. In this post we look at the different types of construction safety signs.

Health and safety signs are displayed everywhere on construction sites, from the site hoarding and entrance points to various locations throughout the site.

If you work on construction sites or have just walked past one, you are likely to have spotted some of these health and safety signs. They come in bright colours, like red, green, blue and yellow.

What are these signs there for, and what do they mean?

Construction site safety signs are not put up for decoration, each sign has a meaning, and each colour represents a different message.

It is important to understand the instructions given to you by construction site safety signs, they are displayed to deliver a clear health and safety message. Failing to understand and follow the instructions given by a sign might mean you lose your job – or your life.

Construction site safety signs are there for a reason. They deliver important bits of information to you, warning you of hazards to watch out for, or requirements that you must obey.

All safety signs have to conform to the Safety Signs Regulations. Being familiar with the different types of signs means we will be able to spot:

  • Prohibition Signs
  • Mandatory Signs
  • Warning Signs
  • Safe Condition Signs
  • Fire Fighting Equipment Signs

So what do the different types of signs look like, and what do they mean?

Prohibition Signs

Examples: Stop, No Entry, No Smoking.

prohibition safety sign

These have a red circle with a cross bar on white background. Any lettering is black.

Meaning: DO NOT. YOU MUST NOT. STOP IT IF YOU ARE.

Mandatory Signs

Examples: Hard Hats must be worn, Keep locked shut.

mandatory safety sign

These have a solid blue circle with a white symbol and/or lettering.

Meaning: YOU MUST DO. OBEY.

Warning Signs

Examples: Danger, High Voltage, Asbestos, Work Overhead

warning safety signwarning safety sign

These have a solid yellow triangle (point up) with a black border. Any symbol or lettering is also black on yellow.

Meaning: YOU HAVE BEEN WARNED, BE CAREFUL, BE AWARE.

Safe Condition Signs

Examples: Fire Exit, First Aid

safe condition safety sign

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